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 TM 5-2410-237-23
TRANSMISSION THEORY OF OPERATION - CONTINUED
0103 00
TRANSMISSION LUBRICATION
30
35
39
41
33
42
34
32
29
28
26
25
36
27
31
37
38
40
387-638
1.
The oil for lubrication of the transmission comes from the transmission oil cooler.
2.
From the cooler, the oil goes to manifold (25) on the front of the transmission case. The manifold divides the flow of oil.
Oil is sent through tubes (26 and 27). The remainder of the oil goes out a hose to the relief valve for brake cooling and
lubrication in the steering clutch compartment.
3.
Oil goes through tube (26) to manifold (28) in front bearing cage (29). The manifold sends oil through a passage to the
no. 1 carrier. The oil then goes through passages in the planetary gear shafts to the bearings and thrust washers of the
planetary gears. Oil also goes through a passage in shaft (30) to center bearing (31) of the input shaft. A small passage in
bearing cage (29) lets oil go to front bearing (32) and bearing (33). This oil then goes through passage (34) to the bottom
of the transmission case.
4.
A small passage in the no. 1 carrier lets oil go to the ring gear of the no. 1 clutch.
5.
A small passage in the ring gear for the no. 1 clutch lets oil go to the discs and plates of the no. 1 clutch.
6.
Tube (27) is installed in a hole in no. 1 clutch housing (35). Each of the clutch housings (36, 37 and 38) has a hole which
is in alignment with the hole in the no. 1 clutch housing. Plates (39 and 40) also have a hole which is in alignment with
the hole in the no. 1 clutch housing.
7.
Oil goes through tube (27) to the no. 1 clutch housing (35). The oil goes through the holes in clutch housing (36, 37 and
38) and plate (40) to plate (39).
8.
Plate (39) has a groove on the rear side of the plate. The oil from manifold (25) goes to the groove. At the groove, the
flow of oil divides.
0103 00-5
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